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Tomagnostus fissus

Agnostida - Ptychagnostidae

Taxonomy
Agnostus fissus was named by Lundgren (1879).

It was recombined as Ptychagnostus (Ptychagnostus) fissus by Westrop et al. (1996); it was recombined as Tomagnostus fissus by Robison (1994) and Naimark and Pegel (2017).

Sister species lacking formal opinion data
T. perrugatus

Synonymy list
YearName and author
1879Agnostus fissus Lundgren p. 1879 fig. 23
1994Tomagnostus fissus Robison p. 59 fig. 30
1996Ptychagnostus (Ptychagnostus) fissus Westrop et al. p. 819
2017Tomagnostus fissus Naimark and Pegel

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
orderAgnostidaSalter 1864
suborderAgnostinaSalter 1864
superfamilyCondylopygoideaRaymond 1913
familyPtychagnostidaeKobayashi 1939
genusTomagnostusHowell 1935
speciesfissus(Lundgren 1879)

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

†Tomagnostus fissus Lundgren 1879
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Entire body: yesf
Adult length: 1.0 to < 10f
Adult width: 1.0 to < 10f
Locomotion: slow-movingo
Life habit: epifaunalo
Diet: detritivoreo
Vision: blindf
Created: 2009-06-11 18:42:48
Modified: 2009-12-13 04:44:17
Source: f = family, o = order
References: Hendy 2009, Kiessling 2004

Age range: base of the Amgan to the top of the Dresbachian or 510.20000 to 485.40000 Ma

Collections (13 total)


Time interval Ma Country or state Original ID and collection number
Branchian517.1 - 509.0United Kingdom (England) Tomagnostus fissus (225240)
Amgan510.2 - 504.5Kazakhstan Tomagnostus fissus (9971)
Arcadian509.0 - 498.4Canada (Newfoundland and Labrador) Ptychagnostus fissus (9689 9690)
St Davids509.0 - 497.0Greenland Tomagnostus fissus (10478)
Tuesaian505.3 - 503.0Kazakhstan Tomagnostus fissus (9968)
Menevian504.5 - 499.5United Kingdom (Wales) Tomagnostus fissus (198942)
Marjumian504.5 - 497.0USA (South Carolina) Tomagnostus fissus (75062 75063)
Marjumian504.5 - 497.0Canada (Newfoundland and Labrador) Ptychagnostus fissus (9632 9633 9680)
Dresbachian497.0 - 485.4Canada (Newfoundland and Labrador) Ptychagnostus fissus (9702)